body {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    user-select: none;
}

div {
    padding: 15px;
    color: grey;
    border: solid 2px;
    border-radius: 3px;
    font-size: xx-large;
    font-family: system-ui;
}